feat(purchases): implement purchase receipt functionality with form and receipt template

- Added `ProductPurchaseComponent` to handle product purchases.
- Created `PurchaseReceiptTemplateComponent` for displaying purchase receipt details.
- Developed `PurchaseFormComponent` for managing purchase form inputs and submission.
- Introduced `ProductChargeRowFormComponent` and `ProductChargeRowFormFieldsComponent` for handling product charge rows in the form.
- Implemented `PurchaseReceiptProductRowComponent` for displaying individual product rows in the receipt.
- Established API routes for purchase operations in `apiRoutes`.
- Integrated suppliers and inventories selection components.
- Added utility functions for converting prices to Persian alphabet.
- Created a utility for generating full names from name parts.
- Enhanced form validation and submission handling in the purchase form.
- Updated styles and templates for improved UI/UX.

src/app/modules/purchases/models/index.ts

@@ -0,0 +1,23 @@
+import { Maybe } from '@/core';
+import { IProductResponse } from '@/modules/products/models';
+import { FormArray, FormControl, FormGroup } from '@angular/forms';
+
+export * from './io';
+
+export interface IPurchaseItemFormGroup extends FormGroup<{
+  product: FormControl<IProductResponse | null>;
+  count: FormControl<number>;
+  fee: FormControl<number>;
+  description: FormControl<string>;
+  total: FormControl<number>;
+}> {}
+
+export interface IPurchaseFormGroup extends FormGroup<{
+  code: FormControl<string>;
+  isSettled: FormControl<boolean>;
+  buyAt: FormControl<string>;
+  description: FormControl<Maybe<string>>;
+  products: FormArray<IPurchaseItemFormGroup>;
+  inventoryId: FormControl<number>;
+  supplierId: FormControl<number>;
+}> {}

src/app/modules/purchases/models/io.d.ts

@@ -0,0 +1,57 @@
+import { Maybe } from '@/core';
+
+export interface IPurchaseRawResponse {
+  id: number;
+  totalAmount: number;
+  inventoryId: number;
+  supplierId: number;
+  code: string;
+  items: IPurchaseItemResponse[];
+  createdAt: string;
+  updatedAt: string;
+  deletedAt?: string;
+}
+
+export interface IPurchaseResponse extends IPurchaseRawResponse {}
+
+export interface IPurchaseItemRawResponse {
+  id: number;
+  count: number;
+  fee: number;
+  total: number;
+  productId: number;
+}
+
+export interface IPurchaseRequest {
+  totalAmount: number;
+  inventoryId: number;
+  supplierId: number;
+  code?: string;
+  description?: string;
+  items: IPurchaseItemRequest[];
+}
+
+export interface IPurchaseItemRequest {
+  productId: number;
+  count: number;
+  fee: number;
+  total: number;
+}
+
+export interface IPurchaseForm {
+  inventory: Maybe<IInventoryResponse>;
+  supplier: Maybe<ISupplierResponse>;
+  code: string;
+  isSettled: boolean;
+  buyAt: Date | string;
+  description: string;
+  totalAmount: number;
+  products: IPurchaseItemForm[];
+}
+export interface IPurchaseItemForm {
+  product: Maybe<IProductResponse>;
+  count: number;
+  fee: number;
+  total: number;
+  description?: string;
+}